Rack



FIG. 1 is a top, right, front perspective view of a rack showing my new design;

FIG. 2 is a front elevation view thereof;

FIG. 3 is a rear elevation view thereof;

FIG. 4 is a left side elevation view thereof;

FIG. 5 is a right side elevation view thereof;

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a bottom plan view thereof.

The broken line showing is for the purpose of illustrating unclaimed portions of the rack and forms no part of the claimed design. 

CLAIM The ornamental design for a rack, as shown and described. 